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Anterior perforated substance

Anterior perforated substance
Scheme of rhinencephalon (anterior perforated substance labeled at bottom left)
Base of brain (anterior perforated substance labeled at center.)
Latin Substantia perforata anterior
Gray's p.827
NeuroNames hier-264
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Anatomical terms of neuroanatomy
Also known as substantia innominata.

The anterior perforated substance is an irregularly quadrilateral area in front of the optic tract and behind the olfactory trigone, from which it is separated by the fissure prima; medially and in front, it is continuous with the subcallosal gyrus; it is bounded laterally by the lateral stria of the olfactory tract and is continued into the uncus.

Its gray substance is confluent above with that of the corpus striatum, and is perforated anteriorly by numerous small blood vessels that supply such areas as the internal capsule.

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See also


This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)

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